参数资料
型号: RH5RI713B-T2
厂商: RICOH COMPANY LTD
元件分类: 稳压器
英文描述: 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO5
封装: SOT-89, 5 PIN
文件页数: 15/24页
文件大小: 179K
代理商: RH5RI713B-T2
RH5RI
21
VIN
Inductor
Diode
OUT
Vss
VOUT
+
Capacitor
EXT
ZD:6.8V
RH5RI502B
Tr
Cb
RZD
Rb
Starter Circuit
(Note) When the Output Current is small or the Output Voltage is unstable,use the Rzd for flowing the bias current through the Zener diode ZD.
FIG. 6
VIN
Inductor
Diode
OUT
Vss
VOUT
+
Capacitor
RH5RI
××1B
Tr
PNP
Lx
Rb1
Rb2
Starter Circuit
(Note) When the Lx pin Voltage is over the rating at the time PNP Tr is OFF,use a RH5RI
××2B and drive the PNP Tr. by the external NPN Tr.
FIG. 7
APPLICATION CIRCUITS
12V Step-up Circuit
Step-down Circuit
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